JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" placeholder="your text" />
<input type="text" placeholder="alternate text" />

JavaScript

$(function()
{  
      $('input').focusin(function()
      {
        input = $(this);
        input.attr('placeholder', input.data('place-holder-text'));
        
      });

      $('input').focusout(function()
      {
        input = $(this);
        input.attr('placeholder', input.data('place-holder-text'));
        
      });
})